Characterization of low traffic volume highway storm water runoff

摘要

Astudy was perfomed to determine the extent of contamination in storm water runoff from low traffic volume highways. In-field automated sampling and data collection of storm water runoff from a 30,000 average daily traffic highway in Fairfield. County, Ohio, was completed for 65 rainfall events from October 1996 to November 1997. The runoff area consisted of two inner lanes of a four-lane highway, composed of 1166 square meters of asphalt, which drained to 290 square meters of vegetated median (a total drainage of 1456 square meters). The runoff was collected in a median drain that flowed by conduit to the highway drainage ditch.